Huawei Quidway NetEngine80E Configuration Manual page 876

HUAWEI NetEngine80E/40E Router
Configuration Guide - IP Routing
Step 5 Run:
tcp timer pathmtu-age age-time
The aging time is set for an IPv4 path MTU.
By default, the IPv4 path MTU aging time is set to 0 seconds. An IPv4 path MTU does not age.
The path MTUs of different routes may be different. The path MTU of hosts depends on the
selected route and may change. If there are multiple routes between two communication hosts
and the routes selected for packet transmission change frequently, the path MTU aging time
needs to be configured. The system updates path MTUs based on the path MTU aging time,
increasing the transmission efficiency.
----End
Checking the Configurations
After configuring path MTU auto discovery, you can run the following commands to check the
previous configuration.
l
# After configuring path MTU auto discovery, view detailed information about the BGP peer at
10.1.1.2.
<HUAWEI> display bgp peer 10.1.1.2 verbose
Received: Total 1467 messages
Sent: Total 1468 messages
Authentication type configured: None
Last keepalive received: 2012-03-06 19:17:37 UTC-8:00
Issue 02 (2014-09-30)
Run the display bgp peer [ ipv4-address ] verbose command to check whether path MTU
auto discovery has been successfully configured.
BGP Peer is 10.1.1.2,
Type: IBGP link
BGP version 4, Remote router ID 4.4.4.4
Update-group ID: 1
BGP current state: Established, Up for 1d00h25m21s
BGP current event: KATimerExpired
BGP last state: OpenConfirm
BGP Peer Up count: 1
Received total routes: 0
Received active routes total: 0
Advertised total routes: 0
Port: Local - 179
Configured: Connect-retry Time: 32 sec
Configured: Active Hold Time: 180 sec
Received : Active Hold Time: 180 sec
Negotiated: Active Hold Time: 180 sec
Peer optional capabilities:
Peer supports bgp multi-protocol extension
Peer supports bgp route refresh capability
Peer supports bgp 4-byte-as capability
Address family IPv4 Unicast: advertised and received
Update messages
Open messages
KeepAlive messages
Notification messages
Refresh messages
Update messages
Open messages
KeepAlive messages
Notification messages
Refresh messages
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remote AS 65009
Remote - 50450
Keepalive Time:60 sec
Keepalive Time:60 sec
0
1
1466
0
0
0
2
1466
0
0
8 BGP Configuration
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